<template>
  <div class="lbox">
    <button @click="sendMsg">发送</button>
  </div>
</template>

<script lang='ts' setup>
    import bus from '@/utils/bus'
    const sendMsg=()=>{
        bus.emit("aa","前端14期")
    }

</script>

<style lang='scss' scoped>
.lbox{
    flex-grow: 1;
    height: 100vh;
    background-color:thistle;
}
</style>